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【单选题】
为了减小涡流损耗，交流铁心线圈中的铁心由钢片（ ）叠成。A.
垂直磁场方向
B.
顺磁场方向
C.
任意
D.
无法确定
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反馈参考答案：
举一反三
【单选题】下面程序的文件名为t.exe，在DOS下输入的命令行参数为:t to meet me＜回车＞ 则程序输出的结果是 #include 'stdio.h' main(argc,argv) int argcchar *argv[ ] { int i printf('%d/n',argc)}
A.
3
B.
4
C.
2
D.
以上答案都不正确
【单选题】Public protests can cause even the most powerful companies to change their policies. For example, an activist group recently staged a demonstration in front of the HydraBore corporate headquarters to ...
A.
Preliminary studies show that the new chemical may be more carcinogenic than Ectomazathol.
B.
The recently introduced chemical that is replacing Ectomazathol is less expensive and more effective in its industrial application than Ectomazathol.
C.
HydraBore devoted no publicity efforts to announce its switch from Ectomazathol to the new chemical.
D.
As protests against HydraBore have become more frequent, the company has subsequently increased its public relations budget.
E.
The activist group that staged the demonstration has been linked to illegal acts of theft and sabotage within other corporate headquarters.
【简答题】请清晰地直接粘贴你在实验1中查询到的标准层次(STANDARD HIERARCHY),并分析其中的信息。
【简答题】在设计正则表达式时，字符_______紧随任何其他限定符(*、+、?、{n}、{n,}、{n,m})之后时，匹配模式是“非贪心的”，匹配搜索到的、尽可能短的字符串。
【简答题】请描述菌胶团在废水生物处理中的作用。
【简答题】三维室内控制场的布设原则有( )、( )和( )
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